Supposedly both ranger and necromancer are under-powered in pvp, while elementalists, mesmers and to a lesser extent thieves are a bit over powered. Given that pet classes also have problems in dungeons, the question is more why is the ranger still the most popular class

Asura guardian and norn mesmer.
Also made a thief, but I don't play him that much anymore, so I didn't count him.

Accusing someone of breaking the forum rules is backseat moderating.
Accusing someone of backseat moderating is backseat moderating.
Therefore, due to its nature, backseat moderating will lead to nothing more than circular discussions.

Elementalist, Necromancer and Mesmer. I've played alot of all three, and I have to say even though others might think differently that Necro is better than the other two, pvp wise. I still played most Mesmer just because it's so incredibly fun. Elementalist is also really fun, however I always feel way too squishy playing it.

Main was a Thief, but i also had a Human Guardian at 80 and when i last played i was working on my Elementalist. Ele is a weird choice for me since i usually go for the melee classes, but Dagger/Dagger Ele was too awesome to pass up.